Remove return value statement from the function that have void return type.

components/content_settings/core/browser/website_settings_info.cc

Index: components/content_settings/core/browser/website_settings_info.cc
diff --git a/components/content_settings/core/browser/website_settings_info.cc b/components/content_settings/core/browser/website_settings_info.cc
index 0a9cfce981d45f9e851a28f2f92851d47f3dfd98..7dd2f2dec6dd99f06d53c7f03324eae2cb6dedd3 100644
--- a/components/content_settings/core/browser/website_settings_info.cc
+++ b/components/content_settings/core/browser/website_settings_info.cc
@@ -10,8 +10,8 @@
 
 namespace {
 
-const char* kPrefPrefix = "profile.content_settings.exceptions.";
-const char* kDefaultPrefPrefix = "profile.default_content_setting_values.";
+const char kPrefPrefix[] = "profile.content_settings.exceptions.";
+const char kDefaultPrefPrefix[] = "profile.default_content_setting_values.";
 
 std::string GetPrefName(const std::string& name, const char* prefix) {
   std::string pref_name = name;